在老龄化的印度人口中,认知功能和神经退行性血液生物标志物:来自LASI-DAD第2波的见解
Abhijith R Rao1, Rashmita Pradhan2, Masroor Anwar2
1Department of Geriatric Medicine, National Centre for Ageing, All India Institute of Medical Sciences, New Delhi, India.
Journal of the American Geriatrics Society
|February 10, 2026
概括
在印度老年人中,神经纤维光链 (NfL) 和状纤维酸性蛋白 (GFAP) 水平的升高与认知表现较差有关. 这些生物标志物可能有助于未来的痴呆症查和预后.
科学领域:
- 神经科学是一个神经科学.
- 老年学是一门学科.
- 生物标志物研究 生物标志物研究
背景情况:
- 认知衰老和痴呆症带来了重大的公共卫生挑战,特别是在印度日益增长的老年人口中.
- 这项研究调查了社区居住的老年人认知功能和神经退行性生物标志物之间的关系.
- 使用来自印度长度衰老研究的数据 - 痴呆症诊断评估 (LASI-DAD) 波2.
研究的目的:
- 检查特定血液生物标志物与老年印度成年人的认知表现之间的关联.
- 确定潜在的生物标志物,用于早期检测和认知衰退的预后.
- 了解生物标志物在不同认知领域的作用.
主要方法:
- 从LASI-DAD波2中分析了4635名参与者 (年龄≥60岁) 的数据.
- 评估认知功能,包括记忆,执行功能,语言和视觉空间能力.
- 测量的血液生物标志物:总,酸化-181 (pTau-181),神经丝光链 (NfL),状纤维酸性蛋白 (GFAP) 和Aβ42 / Aβ40比率.
- 使用通用线性模型 (GLM) 来分析关联,调整人口统计和临床因素.
主要成果:
- 高水平的NfL,GFAP和p-Tau 181与较差的认知表现有关.
- 在调整后的模型中,高NfL和高GFAP显著与整体认知能力低下有关.
- 特定的生物标志物显示与特定的认知领域的关联,例如,Aβ42/Aβ40比与识别记忆.
结论:
- 较高的NfL和GFAP与印度老年人的认知表现不佳密切相关.
- 这些生物标志物显示出有助于痴呆症查和预后的潜力.
- 建议进行进一步的纵向研究,以验证它们在大规模查计划中的有用性.
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